Sheet-metal packing-case.



J. H. KILLIO'N. SHEET METAL PACKING CASE. APPLICATION FILED'MAE. 8, 1909.

Patented Dec. 17, 1912.

2 SHEETS-SHEET 1.

jrwgenir? J. H. KILLION.

SHEE';I METAL PACKING CASE. APPLICATION FILED MAR. a, 1909.

Patented Dec. 17, 1912;

2 SHEETS-SHEET 2.

assembled in operative relation when JOHN H. KILLION, OF CHICAGO, ILLINOIS.

SHEET-METAL PACKING-CASE.

Specification of Letters Patent.

Patented Dec. 17, 1912.

Application filed March 8, 1909. Serial No. 481,976.

To all whom it may concern:

Be it known that I, JOHN H. KILLION, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sheet-Metal Packing- Cases, of which the following is a specification.

The principal object of my invention is to provide a new and improved sheet metal packing case.

Another object is to provide a sheet metal packing case that can be knocked down when empty and can have its parts quickly desired.

Another object is to provide a sheet metal packing case that shall have great strength in proportion to the quantity of material employed.

Another object is to provide means for fastening the parts of such a packing case in operative relation' ,Other objects will be more readily apparent in connection with the following specification taken with the accompanying drawings.

With all these objects in View, the invention consists of the combination of elements recited in the appended claims.

In the accompanying drawings, I have illustrated one particular embodiment of my invention which is one of several forms thereof preferred by me at the present time.

Figure 1 is a sideelevation of my improved packing case. Fig. 2 is a vertical central section thereof. Fig. 3 is a top plan View, and Figs. 4, 5 and 6 are sectional views of certain details.

In that particular embodiment of my invention which I have chosen to illustrate in the drawings the packing case has the general shape of a hollow cylinder, the convex side walls being double.

15 is an inner sheet of metal bent around in the form of a cylindrical shell. Where the edges meet, one edge is folded back on the inside, as indicated by the reference nu meral 16, and then forward in a terminal fold 17, the two folds 16 and 17 being spaced apart slightly to receive the opposite edge 18 of the sheet between them. It will be observed that this constitutes what may he called a thrust joint, that is a joint adapted to be maintained against forces pushing the meeting edges toward each other.

Another piece of sheet metal 19 is bent around outside of the sheet 15 in the general form of a cylindrical shell, but with longitudinal corrugations therein. The meeting edges are respectively doubled back, as indicated by the reference numerals 20 and 21 in Fig. 5, thus forming hook shaped slots adapted to engage one another.

The heads 22 of the packing case are alike. Each one is corrugated circumferentially and the edges 23 are turned down so that the head forms a cap. The edges 23 are corrugated to correspond to the side wall 19. Each cap or head is preferably formed by stamping it in a die.

At the center of each head 22 is a hole 2 1. A tie-rod extends axially through the packing case, its ends being screwthreaded, as indicated by the reference numerals 30 and 31. The member 26 has a screw-threaded socket 27 adapted to receive the screwthreads 30 on the rod 25. The member 26 also has an externally screw-threaded pro jection 28 fitting within the hole 241 and engaging a nut 29. The nut 32 on the opposite end of the tie-rod 25 serves to clamp the heads 22 together.

Another means for fastening the parts of the barrel in assembled relation will now be described. Near the ends of the side walls notches 33 are cut in the projecting parts of the corrugations of the outer side wall. Other notches 34; registering with these are cut in the projecting parts of the corrugations in the flange 23 of the head 22. When the parts are assembled the band 35*, preferably a wire, is wrapped around the end of the packing case lying all the way in the notches 33 and 341 and the ends of this band are fastened together, for example by twisting them together, as indicated by jthe reference numeral 36. This band fitting within the notches secures the heads 22 to the side wall member 19.

Still another means for securing the parts of the packing case in the assembled relation will now be described. A plurallty of tie-rods 37 are provided, each in two parts with their ends in alinement and adapted to be drawn together by a turn-buckle 39. The ends of the tie-rods away from the turn-buckle are bent over in the form of hooks 38 which engage the edges of the heads 22. The tie-rods 37 and the turnbuckle 39 are adapted to lie in the channel parts of the corrugations of the side wall 19.

parent that for some purposes only one of them need be employed at one time. In

.other cases it may be desired to use any two of them or all of them at the same time.

Before assembling the parts of this packing case the inner side wall member 15 will be in the form of a plane sheet of metal. The operator will take this and bend it around in cylindrical shape so as to unite the meeting edges, as shown in Fig. 4. The operator will also find the outer side wall 19 in the eneral form of a plane piece of sheet meta, but corrugated longitudinally. He will take this and bend it around into the general shape of a cylinder, hooking the meeting edges together, as indicated in Fig. 5. He will then slip the cylindrical shell 15 into the shell 19 telescopically. The outer shell 19 has what may be termed, a tension joint for its meeting edges,'that is a joint which resists any force tending to pull the meeting edges apart. It will at once appear that when the inner and outer shells 15 and 19 are assembled, as just described, their joints are locked against disengagement. The tension joint in the outer shell 19 cannot be disengaged because the necessary displacement is resisted by the inner shell. On the other hand the thrust joint of the inner shell cannot be disengaged because the displacement necessary therefor is resisted by the surrounding outer shell.

The inner and outer members of the side Wall having been assembled as described, the member 26 and nut 29 may be assembled to one of the heads, as shown in Fig. 2. This head can then be applied, as shown in the drawings and the tie-rod 35 screwed into the socket 27. Then the other head 22 can be applied and the whole clamped together by means of the nut 32. Thereafter the outer tie-rods 37 can be applied in an ob- 'vious manner and tightened up by means of the turn-buckles 39. Finally the tie bands 35 can be applied as shown.

If it is desired to open the upper end of the packing case and to remove the contents by means of a scoop the tie-rod 25 can be unscrewed from thesocket 27 and lifted out, thus removing any obstruction that might otherwise be offered to the scoop.

It will be seen that the particular embodiment of my invention which I have described and have illustrated in the drawings 1s adapted to satisfy the objects stated at the beglnning of thisspecification. This barrel has the advantages that a plurality of them can be packed together very compactly for shlpment 1n knocked-down condition, that the parts of a single barrel are few and simple and that they can be quickly and easily assembled to operative relation to receive and transport a desired commodity. The corrugations of the outer side wall 19 give it great strength to resist blows or thrusts from the outside toward the center and it is further strengthened in this respect by the inner shell 15. By the structure disclosed great strength is secured with small use of material.

This packing case can be easily opened when desired without destroying any part of it or impairing its utility, and the parts can be again assembled so that it can be used repeatedly. At any stage of its use if desired it can be knocked down and 'then later on completely reassembled.

I claim:

1. In a-device of the class described, a side wall of longitudinally corrugated sheet metal in the form of a cylindrical shell, a head having a peripheral corrugated flange fitting around said side wall at its end on the outside thereof, with wall and flange corrugations registering with each other, registering notches in said side wall and flange through the outer corrugation wave crests, and a tie-band fitting in said notches, and engaging both wall and cover flange.

2. In a device of the class described, a side wall formed of longitudinal corrugated sheet metal with a circumferential series of notches in the projecting parts of the corrugations, a head having a peripheral flange adapted to surround said side wall on the outside thereof, said flange being corrugated to fit the corrugations on the side wall and having notches registering with the aforesaid notches, and a tie-band in the registering notches of the said flange and side wall.

3. In a device of the class described, a sheet metal side wall consisting of two thicknesses braced against each other, the outer thickness having a detachable longitudinal hooked joint, said thickness being on a circumferential tension when the device is assembled, the inner thickness having a detachable longitudinal thrust joint, said thickness being under circumferential compression when the device is assembled, and

heads with peripheral flanges surrounding the edges of the side wall.

4. In a device of the class described, a side wall of two thicknesses of sheet metal,

the inner thickness having a longitudinal .member having a joint the members of which can be united only by being pushed together and the meeting edges of the outer corrugated member having a joint the members of which can be united only by being hooked together, and heads adapted to coactwith said side wall.

' 6. In a device of the class described, a side wall consisting of two thicknesses of sheet metal, the inner thickness having one of the meeting edges bent back and then forward so as to form a socket so as to receive the opposed meeting edge, both meeting edges of the other member being folded back so as to form hooks to engage one another, and heads adapted to coact with said side Wall.

7. In av device of the class described, a side wall consisting of two thicknesses of sheet metal, the inner member having a thrust joint and the outer member having a tension joint, the two members being engaged together telescopically, the joints being braced against each other, whereby said joints are held connected until the two members have been separated by relative telescopic displacement, and heads adapted to coact with said side wall.

8. In a device of the class described, a side Wall of two thicknesses of sheet metal, the inner thickness having its meeting edges united by a thrust joint, the outer shell having its meeting edges united by a tension joint whereby the two thicknesses can be assembled only by telescoping them together after the joints are united, and heads adapted to coact with the side wall.

9. In a device of the class described, the combination with a cylindrical inner wall having one of its meeting edges bent back and then forward so as to form a longitudina-l slot-like socket adapted to receive the opposed plain meeting edge of said inner wall, of an outer wall embracing said inner wall and having both of its meeting edges folded back oppositely with respect to each other and adapted to hook together, said walls being adapted to reciprocate telescopically'with respect to each other.

In testimony whereof, I have subscribed my name.

JOHN H. KILLION.

Witnesses:

WALTER A. Scorr, HENRY A. PARKS. 

